青同学2020-09-21 11:48:56
63答案不太对 应该选什么呀
回答(1)
Jenny2020-09-21 14:11:08
同学你好,63题和64题的解析反了,正确解析是:
63. Solution: D
The OLS procedure is a method for estimating the unknown parameters in a linear regression model.
The method minimizes the sum of squared differences between the actual, observed, returns and the returns estimated by the linear approximation. The smaller the sum of the squared differences between observed and estimated values, the better the estimated regression line fits the observed data points.
64. Solution: C
An estimated coefficient of 0.24 from a linear regression indicates a positive relationship between income and savings, and more specifically means that a one unit increase in the independent variable (household income) implies a 0.24 unit increase in the dependent variable (annual savings). Given the equation provided, a household with no income would be expected to have negative annual savings of GBP 25.66. The error term mean is assumed to be equal to 0.
- 评论(0)
- 追问(2)
- 追问
-
这里被解释变量是 stock对吗
- 追答
-
是的,被解释变量是stock return,解释变量是标普500指数的return。


评论
0/1000
追答
0/1000
+上传图片